Samsung is putting a price tag on SmartThings API access, and it will catch more than just developers off guard.
From October, Samsung rolls out tiered paid plans for its SmartThings API. Individual, non-commercial developers will pay $4.99 a month. The change also sweeps up everyday power users who access the API directly for custom automations, or who rely on third-party tools that do. Home Assistant, the popular open-source smart home platform, confirmed it is affected. Founder Paulus Schoutsen noted that Home Assistant's SmartThings integration will fall under Samsung's new personal plans.
The move signals that Samsung views its smart home API as a revenue line, not just a developer goodwill gesture. That matters because the smart home ecosystem runs on integrations — the moment a platform walls off its API, third-party tools fragment and users face a choice between paying up or switching ecosystems entirely.
Samsung joins a growing list of platforms that offered free API access to build a community, then monetized once that community was large enough to have switching costs. It is a familiar playbook, and it rarely ends with the users who built the ecosystem feeling good about it.